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Process and device for zero discharge of wastewater in pervaporation process

A technology of pervaporation and zero discharge, applied in the direction of permeation/dialysis water/sewage treatment, semi-permeable membrane separation, multi-stage water treatment, etc., can solve the problem of high COD in wastewater, achieve low input cost, increase yield, and high efficiency Effect

Pending Publication Date: 2021-05-07
JIANGSU NINE HEAVEN HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that in the application process of the existing pervaporation permeable membrane material, the permeated wastewater contains a small amount of organic solvent, resulting in a high COD of the wastewater, and at the same time, the organic solvent in the wastewater is concentrated and returned On the raw material side, the recovery rate of pervaporation permeable membrane materials in solvent dehydration is improved

Method used

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  • Process and device for zero discharge of wastewater in pervaporation process
  • Process and device for zero discharge of wastewater in pervaporation process
  • Process and device for zero discharge of wastewater in pervaporation process

Examples

Experimental program
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Effect test

Embodiment 1

[0030]An infiltrated vaporization process wastewater, including raw material storage tank 1, raw material pump 2, heat exchanger 3, first permeable can 4, first vacuum pump 5, permeate condenser 6, permeate pump 7, permeation Heat 8, second permeability tank 9, second vacuum pump 10;

[0031]The raw material storage tank 1, a raw material pump 2, a heat exchanger 3, a first permeable tank 4, a first vacuum pump 5, a permeate condenser 6, a permeation liquid pump 7, a permeate heat transfer device 8, a second permeable tank 9 The second vacuum pump 10 is connected to the tail of the pipe, and the exit of the second vacuum pump 10 is connected to the inlet of the raw material storage tank 1.

[0032]In this embodiment, the first permeable tank 4 is fixedly connected to a preferred water film, and the first permeable canister is fixedly connected to the first water pipe 11, the second water pipe 12; the first water pipe 11 The first solvent can be fixed to the exit, and the outlet of the sec...

Embodiment 2

[0038]An infiltrated vaporization process wastewater, including raw material storage tank 1, raw material pump 2, heat exchanger 3, first permeable can 4, first vacuum pump 5, permeate condenser 6, permeate pump 7, permeation Heat 8, second permeability tank 9, second vacuum pump 10;

[0039]The raw material storage tank 1, a raw material pump 2, a heat exchanger 3, a first permeable tank 4, a first vacuum pump 5, a permeate condenser 6, a permeation liquid pump 7, a permeate heat transfer device 8, a second permeable tank 9 The second vacuum pump 10 is connected to the tail of the pipe, and the exit of the second vacuum pump 10 is connected to the inlet of the raw material storage tank 1.

[0040]In an embodiment, the first permeable tank 4 is fixedly connected to a priority water film, and the first osmotic can be fixedly connected to the first water pipe 11, the second water pipe 12; the exit of the first water pipe 11 The first solvent can there is a first solvent can, and the exit of...

Embodiment 3

[0046]An infiltrated vaporization process wastewater, including raw material storage tank 1, raw material pump 2, heat exchanger 3, first permeable can 4, first vacuum pump 5, permeate condenser 6, permeate pump 7, permeation Heat 8, second permeability tank 9, second vacuum pump 10;

[0047]The raw material storage tank 1, a raw material pump 2, a heat exchanger 3, a first permeable tank 4, a first vacuum pump 5, a permeate condenser 6, a permeation liquid pump 7, a permeate heat transfer device 8, a second permeable tank 9 The second vacuum pump 10 is connected to the tail of the pipe, and the exit of the second vacuum pump 10 is connected to the inlet of the raw material storage tank 1.

[0048]In an embodiment, the first permeable tank 4 is fixedly connected to a priority water film, and the first osmotic can be fixedly connected to the first water pipe 11, the second water pipe 12; the exit of the first water pipe 11 The first solvent can there is a first solvent can, and the exit of...

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Abstract

The invention discloses a wastewater zero discharge device in a pervaporation process. The wastewater zero discharge device comprises a raw material storage tank, a raw material pump, a heat exchanger, a first permeation tank, a first vacuum pump, a penetrating fluid condenser, a penetrating fluid pump, a penetrating fluid heat exchanger, a second permeation tank and a second vacuum pump, the raw material storage tank, the raw material pump, the heat exchanger, the first permeation tank, the first vacuum pump, the penetrating fluid condenser, the penetrating fluid pump, the penetrating fluid heat exchanger, the second permeation tank and the second vacuum pump are sequentially connected end to end through pipelines, and an outlet of the second vacuum pump is connected with an inlet of the raw material storage tank through a pipeline. The problem that in the application process of an existing pervaporation water-permeable membrane material, permeated wastewater contains a small amount of organic solvent, consequently the COD of the wastewater is high is solved, meanwhile, the organic solvent in the wastewater is concentrated and then returned to the raw material side, and the recovery rate of the pervaporation water-permeable membrane material in solvent dehydration is increased.

Description

Technical field[0001]The present invention relates to the field of water treatment techniques, and in particular, a process and apparatus for permeating the wastewater of vaporization process.Background technique[0002]Membrane separation technology is one of the contemporary new high-efficiency separation techniques, compared to traditional separation techniques, which has efficient, energy-saving, process easy control, convenient operation, environmentally friendly, easy to enlarge, especially easy to catalytic reactions and other process integration Etc. In view of this, membrane separation technology has become one of the important new technologies of solving major problems such as environmental, chemical, energy, resources and traditional technological transformations of contemporary humans.[0003]Permeation vaporization (or vapor permeation) dehydration technology is a new type of membrane separation dehydration technique, and the nature of dissolving (adsorption) and diffusion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D61/36C02F1/44
CPCB01D61/362C02F1/448C02F2301/08C02F2209/08C02F2209/02C02F2209/03
Inventor 杨占照朱月馨王灿灿纪祖焕庆珺庆天
Owner JIANGSU NINE HEAVEN HIGH TECH
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